Humidity Sensor: Weather

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2012年9月12日星期三

Home Weather Stations Unleashed

A sensor-free or virtual home weather station is becoming an attractive option for those with the climate bug. The two main choices are between a PC-based program or a standalone station receiving signals from a service. Both can be very accurate when the readings are taken in close proximity to your home or within your micro-climate.

Having your own instruments does provide the most accurate readings for your location. However, a wayward ball, frisky animal, or curious child can wreak havoc on outdoor equipment. Time and the elements can do the same as years go by. In addition, setting up a station and sensors can be quite challenging for those who lack the time or mechanical skills.

The advent of websites that link to local stations has created new opportunities for enthusiasts around the world. One only needs to point their Internet browser toward a site like the Weather Underground or WeatherBug, and they can view real time data from a station in the neighborhood. Sites like these also provide historical readings and the ability to observe conditions in countless regions. Subscriptions are free with an option of paying for certain premium services.

By tapping into services like MSN Direct, standalone stations can provide current conditions without any additional sensors. Stations are actually pulling information from commercial instruments maintained by the service. Readings are updated every two minutes and include wind, rain, chance of rain, temperature and humidity. NWS warnings are also carried on the network.

Proximity to the receiving instruments is key to the quality of options for home stations. If a service maintains instruments nearby, the virtual station becomes almost identical to having your own instruments. If a service has stations that are far away or in a different micro-climate, readings can be very different from current conditions.

The deciding factor in opting for a virtual station is most often the proximity factor. Website services tend to have an incredible number of participating stations, to the point that a single town may have multiple sites to choose from. Services to stations like MSN Direct are limited to metropolitan areas and require more research.

The thrill of tracking a storm in real time is possible without the expense and care of your own sensors. Many who were once intimidated by setting up their own home station have satisfied their passion by going virtual. The options now available for home weather stations leave much room for personal preference, aptitude, and enjoyment.

To further satisfy your storm tracking bug, visit the Weather Station eStore at http://www.weatherstationestore.com.

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2012年9月2日星期日

What is a Weather Remote Sensor?

Weather stations were once large, ugly, stationary devices. That has changed dramatically. Today, there are a variety of small weather stations available for different purposes in the home. Almost all of them are able to take advantage of wireless technology and use remote sensors to gather information.

A remote weather sensor is a small device that is usually mounted or set down in an area where it can transmit collected weather data to a central unit. What that data is depends on the sensor, of course.

The remote sensors come in all forms for all functions. The highest quality ones usually only broadcast a single type of weather data. For example, there could be separate remote sensors for wind speed and direction, humidity, rainfall amount, and temperature. All four of these sensors transmit information (most often by a low-strength radio signal) back to a central unit that neatly displays the numbers all at once.

There are also units that will allow remote sensors to be placed in completely different areas, and then each reading can be cycled through on the central unit, providing data on different areas at the same time. This is especially useful for people with large homes or greenhouses that want to track the temperatures or humidity in separate areas.

Whether they are hobbyists, scientists, or gardeners, consumers have taken a strong liking to remote weather sensors. They have become a mainstay in holiday gift catalogs. The price continues to come down each year on these units, allowing for higher quality sensors with more features to make their way into the market.

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2012年7月22日星期日

High Tech Backyard Weather Stations Can Save You Big Money

People are always looking for technology innovations that will make their life easier, more comfortable, or provide a bit more predictability to their daily events. One innovation that holds promise for doing exactly that are backyard weather stations.

Not so many years ago a high-tech backyard weather station might consist of a weather vane, a barometer, and a rain gauge. Today's technology can provide you with a wireless weather station that monitors so much more critical information like soil moisture and leaf wetness, among other things, and then wirelessly transmits the data to your computer where you can track, graph and analyze historical data.

Today's weather stations have sensors that can detect important weather variables such as daily highs and lows, temperature changes by the hour, barometric changes, and windspeed and direction for any time of the day, along with humidity. If you live in a hgh wind zone be assured that the best outdoor units are built to withstand wind speeds up to 150 mph. They can wirelessly send the data every couple seconds up to 1000 ft. away to an indoor console. The indoor console also collects data for the indoor temperature and humidity and interfaces with your computer.

So what can you do with his data? Everybody with a garden wants to know what to expect in weather conditions over the next several days or even how this particular day of the year has panned out weather-wise in the recent past. High winds dry soil quickly. Frost or below normal temperatures could devastate exotic plants. Some homeowners take great pride in their landscaping and spend many hours caring for thousands of dollars of bushes and plants. Any realtor will tell you that flourishing landscaping plants add significant value to your property. Weather knowledge is about saving money, too.

Outdoor home improvement activities like painting, roof work, masonry, and concrete are highly dependent on favorable weather conditions. For a small independent contractor in the construction business having a better than your average weatherman handle on upcoming weather events could mean the difference between the success and failure of his business. He cannot afford to do every job twice - and out of his own pocket. Construction materials ruined by weather are costly to replace, especially for homeowners who have nobody else to look to for leaving them out and exposed to the weather.

If you're planning a big outdoor event like a barbecue or a pool party you would probably like to have more solid information than an eye to the sky and a finger in the air. How much more important would it be if you were planning an outdoor wedding for tomorrow? Maybe you will be able to save a few hundred dollars on those rain canopies because you know you will not need them, or maybe now you know you are going to have to dig a little deeper to come up with the extra money to pay for them.

Not everybody needs to our wants to be a weather nut but for those people to whom today's and tomorrow's weather mean everything, high technology backyard weather stations can provide it all.

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2012年7月18日星期三

Weather Station Components

An advanced weather station which wirelessly monitors the temperature (indoor and outdoor), relative humidity, wind direction, wind speed and rainfall generally consists of a wireless backlit LCD display screen for the system control and data display, system processor, wireless communications and sensors.

All wireless weather stations are run by battery or solar power making them very portable with very low and easy maintenance.

Below is a list of measurement components used on wireless weather stations:

Thermometer

Used to measure the temperature and temperature gradient in your exact location. A thermometer works by measuring the temperature through resistance, the system processor records the resistance that is higher in warmer temperatures and lower in colder temperatures.

Anemometer

Used to measure wind speed and pressure. An Anemometer has 3 or 4 small hollow hemispheres set to catch the wind and revolve on a vertical rod, the revolutions of these cups are then recorded by the system processor which then calculates the winds velocity.

Barometer

Used to measure atmospheric pressure, this pressure tendency can forecast short-term changes in the weather. A Barometer works by measuring the pressure exerted by the atmosphere by using water, air or mercury.

Psychrometer

Is a simple form of a Hygrometer which is used to measure the relative humidity. A Psychrometer works by measuring the temperature of condensation, changes in electrical resistance and changes in electrical capacitance.

Udometer

Also known as a rain gauge is used to measure the amount of rainfall over a period of time. A Udometer works by having a rain collection container which measures the amount of rain falling into the collection point.

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Find Your Home Weather Station

People don't often consider that having a home weather station can be a real bonus. This is particularly true if you live in an area that can be prone to severe and rapid changes in the weather such as tornadoes, hurricanes, or severe wind or ice storms.

Generally these storms are preceded by changes in the pressure readings. Knowing what those changes are, and watching for them can help you to keep your family safer.

How do you find the best weather station, what does it take to be a good one, and how do you be sure that the one that you select is cost-effective and suitable for you?

Choosing your home weather station is best approached by taking a look at three different factors:

• Your Budget

• Your Needs

• Your Placement Opportunities

What is the best station for you is going to be partly dictated by your budget. That doesn't mean that you can't get the best that you can afford. It means to get what you can afford and don't spend a vast sum of money on something that you not only can't afford, but has a learning curve that may take you months to overcome.

Getting a great weather station can be accomplished for under 100 dollars. It will be one that will offer you pressure and temperature and humidity as well as other items that you'd like to see. Frankly, if you're not a weatherman, and do not really need massive technology, then buying it is futile and a waste of money. Get the weather station that you can afford, as well as the one that you need to accomplish your tasks.

Some weather stations offer you some really outstanding software as well as the ability to connect to your computer and to offer your readings online on various websites. If you are into the more social aspects of weather networking, then this is the type of home weather station that will be best for you and your intended purposes.

If you'd merely like to be able to read the temperature and the humidity and pressure, then one of the smaller models will work best for you and will also offer you the ability to place it in a less sunny area and make your readings more accurate.

Smaller models, not really a weather station, are equipped with an outdoor sensor and an indoor element to permit you a digital reading will typically cost about 30-50 dollars and work very well for your needs. They last several years and are a fairly accurate model. You can place them right outside the door so they don't need any real special consideration.

Laser home weather stations may require a pole or a location that is away from the home somewhat to provide them with an accurate setting, will set you behind for about 300-400 for a good setup that will give you all of the minute details that you would like to have.

Set a reasonable budge based on what you need and what you can actually use.

Marko Kavcic
For http://www.thehomeweatherstation.com where you can find the stations that we recommend.

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2012年7月17日星期二

Wireless Weather

Our close fascination with the weather is being aided by the ever growing popularity of the wireless weather station.

Wireless weather stations are gadgets for determining the weather, temperature, air pressure, humidity, and other weather factors. Wireless weather stations are great for the home or office with professional units having PC connections and related software. These professional wireless weather stations are easy to install and have the flexibility to change the location of the console without having to drill a new hole and move the cable. Wireless Weather Stations are very useful and are clearly the most convenient of all weather instruments.

Many of these units come with inbuilt alarms set to alert you of certain weather conditions. My personal unit's alarm is only triggered maybe once a year, but when it does I know there's some severe weather on the way. Depending on the model you select, temperature, humidity, barometric pressure and other types of weather information such as wind measurement can all be monitored within the comfort of your home. Of course if you have a built in anemometer (wind gauge) then you need it to be located away from any obstructions to the prevailing wind. The roof is generally a good place.

Wireless home weather stations use radio waves to transmit their weather measurements from the remote sensors to the indoor display console. This console can not only tell you the climate readings outside, but with a touch of a button will tell you the conditions inside as well! Some units can come with several consoles so you may locate then at various points around your home or garden.

Wireless home weather stations typically cost more than the older cabled units but it is often worth spending the extra money for the increase in convenience. Before making your weather station purchase, you should consider several issues related to wireless digital weather station technology: Manufacturers usually specify a transmission range rating based upon "open air," meaning a direct line of sight path with no obstructions (walls, etc. To make a more realistic estimate of the distances required between components in your installation it is recommended to review the weather station set up information for the individual unit of your choice.) Another minor problem can be radio frequency interference (RFI). Generally speaking though, this is not a major issue, as there are millions of wireless home weather stations operating without any problems. Finally, the altitude where your wireless digital weather station is going to be installed can also be an issue with regard to the accuracy of barometric pressure measurements. Many stations have a transmission range of up to 330 feet, overcoming most problems effecting home wireless weather stations.

Also, and this is the case for many people, if temperature is your only interest, a wireless thermometer may be all that you need at a much cheaper price than the full weather station. Many of these weather stations also feature radio controlled clocks, which are accurate to the second and updated daily automatically.

Mark Boardman BSc dip.hyp is a leading author and expert on The Weather For more information about World Weather, feel free to visit these sites.

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2012年7月14日星期六

Home Weather Stations Review - The Davis 6250 Vantage Vue Home Weather Station

This home weather stations review of the Davis 6250 Vantage Vue meteorological station is based on actual customers' input, and not that of the manufacturer.

The Davis 6250 Vantage Vue has an easy-to-read backlit display that is a large 3 x 4.5 inch LCD monitor. The unit is as close to real-time as you can get with a speedy update of conditions every 2.5 seconds. This alone is worth the price of admission; it is a whopping 10 times faster than the competition. The optional Davis Weatherlink software data logger offers additional analyses in a wide range to suit even the pickiest weather enthusiast.

And locating your weather station outdoor sensor array is no problem with Davis Instrument's industry-best 1,000 ft. range from the console. This is a full 3 times that of the competition, and just one of many reasons the Davis 6250 Vantage Vue sits head and shoulders above all other home weather reporting units.

The Davis 6250 Vantage Vue weather station continues Davis Instruments reputation for delivering accurate and durable weather recording components that are easy to use and simple to set up. The Davis 6250 Vantage Vue gives you a tough, all-weather outdoor sensor array in an environmentally friendly package that doesn't detract from nature.

This home weather stations review found that the Davis Instruments innovative "report and repeat" system relays current weather conditions every 2.5 seconds wirelessly to your indoor console where you have dew point, rain levels, wind direction and speed, humidity, barometric pressure and temperature available to you instantly.

The big, bright backlit monitor gives you weather forecasts and sunrise and sunset times at the touch of a button, and also displays moon phases. The glow in the dark keypad also allows for easy access in even the worst lighting conditions. You have the ability to show weather trends in a graph form, so you can refer to past months and years in the future and make accurate plans based on detailed info for your area.

Radio-compatible with the Davis Instruments flagship Vantage Pro2 stations, you can mix or match most components and create a weather array sending information from several locations. Need to know when the temperature hits a specific mark? Set up one of the many programmable alarms to notify you visually or audibly. The Davis 6250 Vantage Vue sets up quick and easily, and you can have information on your display in the comfortable confines of your home in minutes.

This Wireless Home Weather Station is for

The advanced weather enthusiast who wants the best Home Meteorological Station technology
The beginner who doesn't want to upgrade after a year or so
The advanced Weather Enthusiast unhappy with her current weather station
The Weather Enthusiast or traveler needs current weather information

This home weather stations review reveals an effective weather kit perfect for the newbie weather enthusiast and the veteran alike.

For the full Davis 6250 Vantage Vue review and videos and customer reviews on other top-rated Home Weather Stations, check out Christopher Cantore's Home Weather Stations Review site for buying tips from a 32 year Weather Enthusiast.

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2012年7月12日星期四

Clocks That Read the Weather

A weather station clock provides all the information you need to know what is going on every morning. The device combines a typical clock with measurements for the current indoor/outdoor temperature, barometric pressure, and humidity levels. High-end weather clocks may also include a calendar and future forecast capabilities so you will always be prepared when it comes to the weather.

Weather station clocks work by measuring the current variables in the temperature and atmosphere. Analog clocks have simple measuring devices while digital weather clocks may use a combination of internal measuring devices and remote sensors that can be placed throughout the home or outside for the most accurate readings. In addition to the function of the weather sensors, many weather clocks work by receiving signals from the United States atomic clock for a continuously accurate time.

Weather station clocks come in both traditional and digital models. Digital models have large display screens for viewing and can also provide additional functions including an alarm, access to weather trend information, other facts including the phase of the moon. Both digital and analog clocks are available in wireless versions that run on batteries, making it easier to place anywhere in your home.

Busy families will benefit the most from having a weather station clock. They can use this device to prepare for the day and know when to take an extra jacket. Often these devices are placed in the kitchen where everyone can see the information before they leave for work or school.

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2012年6月26日星期二

How to Choose the Right Home Weather Station

A home weather station can bring you many years of enjoyment but it can also do much more. It can teach you many things about your local climate and the way weather operates. You can learn such things as what to expect when a cold front moves in or what conditions are present just before a storm. The lessons you learn can help you plan your outdoor activities such as gardening or entertaining or they can help you plan for your outdoor work activities.

You can actually build your own weather station with just a few simple instructions. You will need to purchase a thermometer, barometer, hygrometer, anemometer, rain gauge, and some type of housing to hold the instruments. Once you have these items you will then want to start your weather station assembly.

You need to decide if you want a station that is digital all in one or if you prefer to purchase each thing separately. While there are definitely advantages to both purchasing each unit separately will provide you with the most accurate readings. When you select a thermometer you need to find one that has a memory that records the minimum and the maximum temperature readings. This will allow you to keep up with your high and low readings each day. You will also want a thermometer that will allow you to put the sensor away from your house or any other structures since this will give you the most accurate readings.

When you purchase a barometer you need to make sure it includes a movable bar. This will allow you to set the bar to the current barometric pressure. You can keep track of when the pressure is rising, falling, or remaining steady. This is an absolute must if you want to forecast future weather conditions.

A hygrometer is an instrument that measures humidity. This is important since it can determine how the temperature feels. High humidity may make the air feel hotter than it actually is while low humidity can help you breath better. This is an important reading for anybody with breathing problems.

An anemometer measures wind and wind velocity. You can also measure the speed of the wind and the direction from which the wind is blowing. Often a digital readout is best for this type reading.

A rain gauge does the obvious; it measures the amount of rainfall. You can find different styles that will also adjust for different types of moisture such as snowfall.

Your final step for your home weather station is to purchase the housing that will hold your instruments. You will need to make sure the housing protects your instruments from the elements such as high winds, hail, and rain. If you do not have a weather supply store near you it is possible to build your own housing. Once you have your housing ready you will then be ready to assemble your home weather station and start enjoying the benefits of always knowing what type of weather you have on the way.

Kelly Hunter owns and operates http://www.home-weather-station.org and writes about Home Weather Station issues.

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2012年6月20日星期三

How To Select the Ideal Home Weather Station

Have you ever considered buying your very own home weather station? Not that I'm selling them, but I believe I may be able to help you decide what to look for.

There are certainly many good reasons for having a modern weather station set up and working in your home.

Not the least of these is that they have never before been so easy to install and use, never had so many useful features, and certainly never been such good value.

How Your Own Home Weather Station Will Benefit You

The overall benefits of a home weather station are huge.

Modern home weather stations bring the outdoors inside to you, as outside weather sensors frequently and regularly transmit weather information to an attractively designed receiver/display unit, which can be set up almost anywhere in your home.

Home weather stations can provide crucial information about approaching bad weather, as well as giving you valuable data you can use to help maintain your garden, greenhouse, pond or aviary, or even to decide what to wear when you venture outside.

But best of all, they provide a painless way of understanding the weather, and what drives it. After all, weather provides the background to all our outdoor hobbies, sport and recreation. And many people have found that a strong appreciation of weather has led in many unexpected and enjoyable directions.

So there could be any number of reasons why you first considered a weather station as a possible addition to your home, including just a general interest in weather.

Let's think about what the ideal home weather station might be.

The Ideal Home Weather Station

Firstly, it should be a wireless weather station - no worries about where the cables go. And it certainly will be able to record temperature, humidity, air pressure, wind strength and direction, and rainfall.

Next, the radio's range must be great enough so that you have no problems with installing the sensors in the best place to obtain realistic weather data for your location - no problems with trees or buildings affecting your results because your best position was out of radio range. No problem about the room the receiver goes in because the ideal transmitter can handle a wall or two. And it should be able to operate free of any governmental restrictions on radio frequency, allowing fast and reliable data updates. Most of the likely problems are overcome with a radio range of 300 feet (91m) or more

Thirdly, your temperature sensor is shielded so your readings are not affected by direct heat from the sun.

Fourthly it should be easy to install. A purpose built stand would be nice.

So far so good. You'd be up and running in no time at all, and you'd be able to place the receiver in a location that suits you rather than the radio link.

Now you have a couple of concerns about temperature and wind strength, as it affects your garden. A few programmable warnings would be nice.

And so would a charting facility so you could review changing patterns over the last few hours, or days, or months, for almost any variable.

In fact, you can see a few good reasons for linking your weather station to your computer, where some well designed software allows you to follow up a whole range of thoughts and trends.

You've noticed that there are a number of private weather stations on the net, reporting online data just like you are getting from your set up. But there's a gap in information in your area, and you feel like you'd like to join the network - maybe even become a volunteer weather station in your area. And after a little bit of research, you find that it's no problem at all.

Even better, you've just found a large group of interesting people with similar interests to yourself, scattered over the country, even the world.

All of these features can be found in quite a number of home weather stations, ranging in price from less than $150.00, if you are prepared to look around. However, like most things in life, you tend to get what you pay for, and the better models start around the $450.00 mark. Keep the name "Davis" in the back of your mind.

This doesn't mean that the lower priced home weather stations should be disregarded, particularly if your budget is tight. It just means that your weather station will work better and last longer if you take some care in setting it up and maintaining it, including early preventative maintenance.

To find out more about the better weather stations, where to find the best prices, and how to set them up to give long and trouble free service, make sure you visit http://www.home-weather-stations-guide.com. There's more information in the box just below.

c2005, Graham McClung. A retired geologist, Graham McClung has had a lifelong interest in the outdoors. And where there's outdoors there's weather. He is the editor of http://www.home-weather-stations-guide.com where you can find reviews and advice to help you choose and use your own home weather station. You can email him at information@home-weather-stations-guide.com.

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2012年6月19日星期二

An Electronic Weather Station Will Give You More Accurate Forecasts For Your Area

In the olden days when there were no rain gauges or barometers, people used a very innovative instrument to predict the weather. This instrument was nothing but a flower that grows on a plant named scarlet pimpernel. If the purple, white or scarlet flowers are closed up, then you can expect rains or clouds. On the other hand, if you see the flowers in full bloom then you can be rest assured that the weather will be clear. This is why these plants were known as "poor man's weatherglass". Most of the times, they were more accurate than the weathermen of those days.

However, in today's age you don't need to search for these flowers in the woods. There are more convenient and accurate options that can tell you about the weather from the comfort of your home. One of these options is the electronic weather station.

These are wireless gadgets that are easy to handle and carry. They can tell you about things like the rate of the rainfall, the direction of the wind and the speed along with humidity, air pressure and temperature. Most of these gadgets can also predict storms as well. The underlying principle is quite simple. The classic sign of a sudden storm is a steep drop in the air pressure. Therefore, if your electronic weather station records a low pressure in the air, it will warn you in advance. This is quite useful for areas that are known for problems like storms and cyclones.

These days, the electronic weather station is no longer the ugly and bulky instrument of the olden days. They have a modern exterior that looks sleek in appearance. People who like the more traditional look in their instruments can change the appearance without affecting the functionality and design.

An electronic weather station can be used at home, school or in the office. Some of the more tech savvy models come with all kinds of software and the required apparatus to connect to the PC. The wireless technology is pretty neat. The remote sensors are stationed at different parts of the house. These sensors record the fluctuations in the environment and transmit the data to the main unit located inside the house via radio waves. The electronic weather station will not just record the temperatures outside but also inside. Most of these units can also update the clock and the calendar automatically.

In an age where technology is so prevalent, and other changes are affecting our weather, it's difficult to determine or predict the weather. Winters, summers and even monsoon have become more erratic than ever. Many times, people on television and radio often miss out on the vital points and predict the weather based on past data or their experience.

Avoiding inaccurate forecasts or just to verify, it's a better idea to have an electronic weather station of your own which can accurately predict the local weather. Moreover, it's a gadget that can even help you to impress your family and colleagues. After all, who would not want to know the weather and its many variations before hand?

If you are tired of trying to outguess the weather, then it is time to look into your own electronic weather station. You can know the weather for the day, or with some models the next 4 days, at a glance. You will not have to rely or turn on a TV, radio or computer to get your weather. The really great benefit is to be able to get the weather for your area and not an area 30 miles away, as the sensor is in your back yard.

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2012年5月28日星期一

What is a Weather Remote Sensor?

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2012年5月1日星期二

Photography Course Online - Adverse Weather Can Ruin Your Valuable Camera

Cameras need constant care and attention to keep in optimum operational condition. They generally require daily attention if you are traveling and even more in adverse conditions. Here is a guide to help care for your camera when conditions become extreme.

Extreme Cold

Carry your camera equipment in a hermetically sealed metal case; a complete seal is important. Gaffer tape can be used as a sealant against fine snow and is effective down to -10 degrees C. Take great care when touching metal parts especially with the face. Skin sticks to frozen metal and can be torn off to remove; this is extremely painful.

Try to keep your equipment at a constant temperature as much as possible. Relocating into a warm room straight from the cold causes condensation to form. When taken outside again the moisture freezes on contact with sub zero temperatures. Both the moisture and ice in your camera will almost certainly cause problems. A way to avert this is to put your equipment in separate sealed plastic bags with packets of silica gel. Examine your camera design thoroughly by means of a photography course online and learn how to deal with the issues of extreme conditions and the impact on your camera equipment.

Extreme Heat

Ground temperatures in many deserts can exceed 50 degrees C. Cameras and associated equipment left in these temperatures can become untouchable. In addition direct sunlight on a camera may melt the cement and glue holding components in place. Today, many metal parts have been replaced by plastic; these can also melt under these temperatures. Keep equipment in silver colored cases to reflect the sun away from your equipment. Clean and maintain your equipment at night when its cool. A camera wrapped in chamois leather at night will stay cool well into the day.

High Humidity

The tropics give high humidity and this is also a major problem for camera equipment. Moving between air-conditioned buildings and the outside humid, damp air fogs glass and takes a long time to clear. Keep all equipment constantly outside rather than inside is best if possible. In the damp heat fungus grows on many materials used in your camera. Small insects may decide to make your camera home.

After returning from a trip to India my Nikon SLR metering system failed. I subsequently sent it off for repair. The camera was returned with a note saying a family of spiders took up residence. They were alive all this time and feeding off fungus. Sealing your camera in a plastic bag is the best way to prevent this from occurring. Learn about the impact of humidity on camera equipment through a respectable photography course online and take the appropriate precautionary action.

Excessive Dust

This is a huge problem for SLR cameras particularly if you use prime lenses and changing them frequently. Dust gets inside and makes its way to the sensor and stays put. It can be extremely difficult to remove if not impossible. You may have to send the camera away for professional cleaning and this is expensive. Gone are the days when a blower brush would get you out of trouble. Keep your camera in a well sealed bag when exposed to dust. Consult a reputable photography course online to find out the specifics of your cameras controls and design.

Sea Water

Salt water and even sea air can cause permanent damage to your camera equipment. If you are working in a sea side location you need to take precautions. The best protection again sea water damage is good insurance and a water proof housing. If your camera falls unprotected into sea water, the best thing to do is to throw it away and buy a new one. It will be utterly ruined. If you wish to try and salvage the camera, rinse it thoroughly in clean water and take it immediately to a professional repairer. I have been able to salvage mechanical cameras this way, but with electronic it's much more difficult.

By taking the precautions mentioned here you will be able to avert the many problems that adverse conditions present. This is important to you as high quality cameras are expensive and are vulnerable to the elements. Examine your camera design thoroughly by means of a photography course online and learn how to deal with the issues of extreme conditions and the impact on your camera equipment. Reduce these risks and enjoy years of use from your cameras and lenses.

Roo du Jardin is a photographer who runs an informational website about photography courses online. Read some more photography tips, techniques and resources at Online Photography Courses blog.

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2012年3月9日星期五

Choosing A Wireless Weather Station

If you are looking into purchasing a weather station you will have noticed that there are many on the market.

Choosing the right weather station for you can seem a little daunting. To ensure you choose the correct weather centre you must first decide what functions you require.

Weather stations come in the range of basic, advanced and top of the range models. Generally speaking the basic models are inexpensive and usually contain only one wireless sensor unit which is perfect if all you require is the temperature readings. These basic models measure the inside and outside temperate as well as humidity.

The more advanced models increase in price from the basic models and have more functions. These models also measure the barometric pressure and predict the weather based on these results along with wind direction and rainfall. The more advanced models also have a memory to store the collected data, which is beneficial when collecting weather pattern information. The advanced models also come with software which allows you to connect your weather centre with your computer in order to upload and review all stored data and forecasts.

Top of the range models combine all the features of the more basic and advanced models and also offer flexible expansion options allowing you to add more sensors for UV, extra temperature and extra humidity information and can be extended past the usual home weather monitoring devices into agricultural, research application and fire weather monitoring observations.

With any of these weather stations you can guarantee that you will be investing in a fun and educational experience of understanding the weather and its forecasts.

Thank you for reading this article, you can read more great articles about wireless weather stations here:
http://www.ewirelessweatherstation.com
http://www.ewirelessweatherstation.com/choosing-a-weather-station/

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In this age of digital technology, with instant access to up-to-the-minute data, forecasts, and images from the National Weather Service (NWS) and innumerable other online sources; with timely reports from local broadcasters and cable television networks; with personalized forecasts and storm alerts sent directly to your email, pager, or cell phone; why would anyone need a home weather station?

The answer to that question lies right there in your backyard, where the weather conditions you experience at home are often not the same as any of those resources might suggest. We know that all too well living here in southwest Virginia, as weather conditions up on the mountain ridges can be completely different from those down in the valleys. Fortunately, keeping an eye on local weather conditions using your own state-of-the-art weather station has never been easier or more affordable. Whether simple or elaborate, home weather stations will provide you with information that cannot be obtained anywhere else. And having the ability to glance over at your weather station console from the comfort of your couch or armchair is not only convenient, but fascinating as well.

Depending on desired features and accessories, electronic weather station prices can range from as little as $30 to as much as $3,000 or more. Available in either wireless or cabled versions, these highly accurate weather instruments monitor a variety of weather conditions: temperature and humidity (both indoors and out), atmospheric pressure, precipitation, wind direction and speed, dew point, wind chill, and heat index - all displayed within the comfort of your home! More advanced weather stations offer enhanced features such as faster sampling rates, extensive data graphing and history, and additional sensors ranging from ultraviolet, solar radiation, and evapotranspiration to soil temperature/moisture and leaf wetness. All electronic weather stations include a clock and many of them are radio controlled, resetting themselves daily to the official U.S. government atomic clock located at Fort Collins, Colorado.

Cabled weather stations use a cable to connect their weather sensors to the indoor console. Drawbacks include the risk of lightning (must use lightning arrestors) and having to drill a hole in the wall to link the two, but cabled units are generally less expensive than wireless units. Wireless weather stations use radio signals (typically in the 433 MHz band) to transmit measurements from the weather sensors to the indoor console, eliminating the need to string cable and drill holes. The maximum "unobstructed" (or "line of sight") range between the sensors and indoor console can vary between models, from 80 to 1000 feet. However, their "effective" range is determined by the building materials their signals must penetrate (walls, siding, roof structure, etc.) and by sources of radio interference. As a rule-of-thumb for a typical installation, the effective range is about a third of the rated unobstructed range.

Weather station sensors need to be placed or "sited" properly to provide accurate measurements. Once installed, sensors transmit their data to the indoor console, which updates the display and records the readings at an interval set by the manufacturer. This interval may vary depending on the type of measurement (temperature, wind speed, rainfall, etc.) or may be fixed at one interval rate regardless of the type (every minute, every three minutes, etc.).

Some home weather stations are capable of interfacing with a computer, either included as part of the package or available as an optional accessory. A computer-linked weather station offers not only real-time display of weather measurements on your computer monitor, but also provides for advanced data collection and graphical weather analysis. And with a dedicated internet connection, you can even post weather data to your own weather web page or become a part of the process by sharing your readings with the Citizen Weather Observer Program (CWOP), which forwards the information in a format that the National Weather Service can use. Even if your weather station isn't connected to a computer, you can still participate as a volunteer Skywarn "spotter," providing your local NWS weather forecast office with important weather measurements and severe weather reports.

Interest in weather is nearly universal and the information that home weather stations provide, combined with additional relevant study, can offer you an opportunity for a rewarding lifelong hobby. Most have discovered that their home weather station has given them a better understanding of weather, which has heightened their interest in other aspects of the natural world. After all, weather observation is not just confined to where you live.

About the Author:

Craig Wicks is an amateur meteorologist, Skywarn storm spotter, weather photographer, and General Manager of WeatherShack.com, a leading provider of consumer and professional weather stations. To obtain additional information about the set up and use of home weather stations, please visit the WeatherShack Education Center.

You have permission to publish this article electronically or in print, free of charge, as long as the bylines with active links are included. Please send us a courtesy copy of your publication to info@weathershack.com.

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